Pneumatic Internal Clamps
PROLINE manufactures and supplies a variety of Line Up Clamps. Our clamps ensure accurate alignment of two joints of pipe and are quick and easy to adjust for different pipe wall thickness. All PROLINE clamps have proven themselves in thousands of miles of pipeline construction even under the most extreme field conditions.
 

PROLINE Pnuematic Internal Line Up Clamps assure a rapid, accurate alignment of two joints of pipe during the welding operation. Front and rear heads operate independently to lock the clamp into position. Specially designed shoes on each head exert pressure uniformly around the inside circumference of the pipe to maintain necessary alignment. Each Lineup Clamp is quickly and easily adjusted for different pipe wall thickness. Clamps 16" (406.4 mm) or larger are self-propelled with powerful air motors that drive the clamp forward through the pipe to the next joint.

PROLINE clamps have been proven in thousands of miles of pipeline construction, under the most extreme field conditions

 

Proline Pneumatic Internal Lineup Clamp (Pull-Type)
The PROLINE non-powered Pneumatic Internal Line Up Clamp is a pull type suitable for use in welding small diameter steel pipe from 6" – 14" (18.3mm – 355.6 mm). 
 Features:
  • Air reservoir tank
  • Two double acting cylinders
  • Independent front and rear line up heads
  • 40 feet of reach rod and control ends
  • Operation and maintenance manuals
 
Proline Pneumatic Internal Lineup Clamp (Self-Propelled)
 The PROLINE Pneumatic Internal Line Up Clamp is suitable for use in welding a wide range of pipe diameters from 16" - 60" (406.4 mm – 1524 mm) steel pipe and feature a powered forward and reverse
Features:
  • Forward / reverse travel motor
  • Air reservoir tank
  • Two double acting air cylinders to propel clamp a double joint distance
  • Independent front and rear line up heads
  • 40 feet of reach rod and control ends
  • Operation and maintenance manuals

 

Options:

  • PROLINE Conversion kit available to quickly adjust clamp for different size pipe
 
 
Proline Internal Copper Backup Clamps
 PROLINE’s patented Pneumatic Internal Copper Back Up Clamp is designed to ensure a smooth circumferential weld internally in the pipe. The Copper Back Up Clamp supports the weld pool that would otherwise fall into the pipe sections during the external automatic pipe welding operation.
Features:
  • Copper back up ring assemblies are installed between the front and rear clamping mechanisms of the PROLINE Internal Pneumatic Line-up Clamps
  • Ring assemblies are engineered to operate totally separate from the front and rear clamping mechanisms of the internal pneumatic line-up clamps
  • Design ensures that each copper shoe will fully contact the internal surface of the pipe